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Why would they aim for children's bedrooms? ![]() |
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But space is not the third dimension... ![]() Uh, space IS commonly referred to as the Third Dimension. Time is often called the Fourth Dimension. http://en.wikipedia.org/wiki/Dimension Classical physics theories describe three physical dimensions: from a particular point in space, the basic directions in which we can move are up/down, left/right, and forward/backward. Movement in any other direction can be expressed in terms of just these three. Moving down is the same as moving up a negative amount. Moving diagonally upward and forward is just as the name of the direction implies; i.e., moving in a linear combination of up and forward. In its simplest form: a line describes one dimension, a plane describes two dimensions, and a cube describes three dimensions. |
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